counter = 100 # 赋值整型变量
miles = 1000.0 # 浮点型
name = "John" # 字符串

print (counter)
print (miles)
print (name)

a = b = c = 1

print(a,b,c)

a, b, c = 1, 2, "john"

print((a,b,c)*2)